It’s been a whirlwind of excitement since we launched PIE into public beta around 24 hours ago. All we did was post an announcement on Twitter, and it spread like wildfire from there. I’ve been fascinated with watching the network effects take over; we’ve seen hundreds of retweets, numerous posts on social bookmarking sites, and the css3pie.com website has seen just shy of 3000 unique visitors from 76 different countries. Not bad at all, especially considering it’s mostly Twitter traffic.

The feedback has been overwhelmingly positive. It’s clear people are very excited about PIE and the possibilities it creates. We’ve been in touch with some other CSS-related projects to discuss cross-project integration, so it’s possible you’ll see PIE integrated with some of your favorite tools.

We have also had some good bug reports come in already. I’d like to remind people that this is a first beta release, so there are undoubtedly many bugs to be found and fixed. We need help finding them, so please, put PIE through its paces and open bug reports for us.

Thanks for the testcase. It looks like you’re running into the z-index problem described at the top of http://css3pie.com/documentation/known-issues/ — the upshot is that unless you give your element position:relative, the CSS3 rendering element slips behind the background of the parent element. I know it sucks, I’m hoping to find a better solution to that problem.

A few people have run into this issue, so it’s clear I need to make it more obvious in the documentation. I’ll also be adding a user forum which should help in troubleshooting.